CN210661047U

CN210661047U - Joint bearing with self-sealing function

Info

Publication number: CN210661047U
Application number: CN201921137755.0U
Authority: CN
Inventors: 蒋璆; 杨浩; 杨季松; 王琪; 石磊; 陈万里
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-06-02
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a joint bearing with self sealss function, it includes outer lane and inner ball, and the inner wall of outer lane is arranged with the coating, and the coating includes the self sealss structure at lubrication portion and the lubrication portion both ends that are located. Design and outer lane inner wall integrative coating, the both ends fashioned self sealss structure through the coating realizes joint bearing's sealed, has simplified joint bearing's structure and equipment, ensures joint bearing's leakproofness, the utility model discloses it is rational in infrastructure, but wide application in bearing technical field.

Description

Joint bearing with self-sealing function

Technical Field

The utility model relates to a bearing technical field, in particular to joint bearing with self sealss function.

Background

A sealing ring needs to be installed in a matched mode on a common knuckle bearing, and external sundries are prevented from entering a working surface between an outer ring and an inner ball and being damaged. The sealing ring is made of rubber or silica gel, the rubber sealing is easy to crystallize, harden and become sticky when being heated at low temperature, and the silica gel is not oil-resistant and is mainly used for static sealing.

In order to improve the sealing performance of the knuckle bearing and avoid the above problems, some mechanical structures are also used to realize sealing at present, for example, a radial knuckle bearing disclosed in chinese patent No. 2008200345990, which includes an inner ring, an outer ring, a self-lubricating material and a sealing device, the sealing device includes a frame and a spring locking ring, the cross section of the frame is in a horizontal hook shape, the long side of the hook shape is bent outwards to form a plane, the plane is respectively abutted against the axial end face of the outer ring, the short side of the hook shape is bent to form a groove-shaped boss, the bosses are respectively arranged in the sealing grooves of the inner ring, and the spring locking ring is clamped in the groove-shaped boss of the frame, thereby improving the sealing performance. However, the sealing method is complicated in structure, increases the processing and assembling procedures, and affects the efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a joint bearing with self sealss function simplifies joint bearing's structure, ensures joint bearing's leakproofness, and the technical scheme who adopts as follows:

joint bearing with self sealss function includes outer lane and interior ball, and the inner wall of outer lane is arranged and is coated the layer, and the coating includes lubrication portion and the self sealss structure that is located lubrication portion both ends.

Further, self sealss structure includes a slot and a laminating portion, and one side of laminating portion and the inner wall laminating of outer lane tip, the opposite side of laminating portion and the outer wall laminating of interior ball.

Furthermore, a binding surface is formed on the inner wall of the end part of the outer ring, and a bus of the binding surface is parallel to a bus of the outer wall of the outer ring.

Furthermore, one side surface of the lubricating part is attached to the spherical surface of the inner wall of the outer ring, and the other side surface of the lubricating part is attached to the spherical surface of the outer wall of the inner ball.

Further, the width of the bonding surface is not less than the sum of the widths of the groove and the bonding part.

Has the advantages that: design and outer lane inner wall integrative coating, the both ends fashioned self sealss structure through the coating realizes joint bearing's sealed, has simplified joint bearing's structure and equipment, ensures joint bearing's leakproofness, the utility model discloses it is rational in infrastructure, but wide application in bearing technical field.

Drawings

FIG. 1 is a schematic structural view of a spherical plain bearing;

fig. 2 is a partial view of the area a in fig. 1.

Detailed Description

The present invention will be further described with reference to fig. 1 to 2.

The utility model relates to a joint bearing with self sealss function, it includes outer lane 11 and

interior ball

12, and 11 inner wall in outer lane is arranged with the coating, and the coating includes lubrication portion 13 and the self sealss structure that is located lubrication portion 13 both ends, and self sealss structure is close to the tip of outer lane 11.

The coating layer adopts a lubricating material with certain elastic deformation, and the self-sealing structure is a lip edge self-sealing structure processed by adopting a finish machining mode, so that the joint bearing realizes self-sealing in the use process. The lubricating material coating that uses to satisfy the operating mode requirement forms an organic whole in 11 inner walls of outer lane and has lubricated and sealed structure concurrently, reducible sealing failure problem that arouses because of the sealing washer material improves joint bearing's life.

The self-sealing structure comprises a groove 14 and a fitting part 15, the groove 14 is located between the fitting part 15 and the lubricating ring part, one side of the fitting part 15 is fitted with the inner wall of the end part of the outer ring 11, and the other side of the fitting part 15 is fitted with the outer wall of the inner ball 12, so that air-tight structures are formed at two ends of the joint bearing respectively.

The inner wall of the end part of the outer ring 11 is formed with a binding surface, and a bus of the binding surface is parallel to a bus of the outer wall of the outer ring 11. The width of the jointing surface is not less than the sum of the widths of the groove 14 and the jointing part 15, when the inner ball 12 and the outer ring 11 rotate relatively, the acting force directions of the position of the jointing surface facing the groove 14 and the position of the jointing part 15 are consistent, and the sealing property is prevented from being damaged due to the deformation of the self-sealing structure. The width here is a dimension in the direction of the central axis of the outer ring 11, and can be understood as a depth in the outer ring 11.

The other inner wall of the outer ring 11 except the end part is a spherical surface, one side surface of the lubricating part 13 is attached to the spherical surface of the inner wall of the outer ring 11, and the other side surface of the lubricating part 13 is attached to the spherical surface of the outer wall of the inner ball 12.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a joint bearing with self sealss function which characterized in that: including outer lane (11) and interior ball (12), the inner wall of outer lane (11) is arranged has the coating, and the coating includes lubrication portion (13) and the self-sealing structure that is located lubrication portion (13) both ends, and self-sealing structure includes a slot (14) and a laminating portion (15), and the inner wall laminating of one side and outer lane (11) tip of laminating portion (15), the opposite side of laminating portion (15) and the outer wall laminating of interior ball (12).

2. The spherical plain bearing with self-sealing function according to claim 1, characterized in that: the inner wall of the end part of the outer ring (11) is formed with a binding surface, and a generatrix of the binding surface is parallel to a generatrix of the outer wall of the outer ring (11).

3. The spherical plain bearing with self-sealing function according to claim 1, characterized in that: one side surface of the lubricating part (13) is attached to the spherical surface of the inner wall of the outer ring (11), and the other side surface of the lubricating part (13) is attached to the spherical surface of the outer wall of the inner ball (12).

4. The spherical plain bearing with self-sealing function according to claim 2, wherein: the width of the jointing surface is not less than the sum of the widths of the groove (14) and the jointing part (15).